:root {
  --color-ink: #171b22;
  --color-ink-soft: rgba(23, 27, 34, 0.68);
  --color-ink-muted: rgba(23, 27, 34, 0.52);
  --color-cream: #f2eadc;
  --color-cream-2: #f7f1e7;
  --color-paper: #fffaf0;
  --color-white: #ffffff;
  --color-gold: #cba258;
  --color-gold-strong: #80591f;
  --color-gold-light: #f1d8a6;
  --color-line: rgba(23, 27, 34, 0.16);
  --color-line-strong: rgba(23, 27, 34, 0.24);
  --color-dark: #171b22;
  --color-dark-2: #202531;
  --color-dark-text: rgba(255, 250, 240, 0.9);
  --color-dark-muted: rgba(255, 250, 240, 0.7);
  --color-dark-line: rgba(255, 250, 240, 0.22);
  --color-error: #8a3838;
  --color-error-surface: rgba(193, 92, 92, 0.08);
  --color-success-surface: rgba(101, 101, 121, 0.08);
  --font-sans: "Inter", "Roboto", "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", "Helvetica Neue", Arial, sans-serif;
  --text-xs: 1.3rem;
  --text-sm: 1.4rem;
  --text-md: 1.6rem;
  --text-lg: 1.8rem;
  --text-xl: 2rem;
  --text-2xl: 2.4rem;
  --text-3xl: 3.2rem;
  --text-4xl: 4rem;
  --leading-tight: 1.12;
  --leading-title: 1.18;
  --leading-body: 1.68;
  --leading-loose: 1.82;
  --space-1: 0.4rem;
  --space-2: 0.8rem;
  --space-3: 1.6rem;
  --space-4: 2.4rem;
  --space-5: 3.2rem;
  --space-6: 4rem;
  --space-7: 5.6rem;
  --space-8: 7.2rem;
  --gutter: clamp(1.6rem, 4vw, 4rem);
  --shell: min(calc(100% - (var(--gutter) * 2)), 118rem);
  --shell-wide: min(calc(100% - (var(--gutter) * 2)), 124rem);
  --radius: 0.8rem;
  --radius-lg: 1.2rem;
  --header-height: 8.4rem;
  --line: 0.1rem;
  --shadow: 0 1px 2px rgba(23, 27, 34, 0.12), 0 12px 30px rgba(23, 27, 34, 0.08);
  --header-surface: rgba(242, 234, 220, 0.94);
}

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--color-cream);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--leading-body);
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  color: inherit;
  font: inherit;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

p,
ul,
ol,
figure {
  margin: 0;
}

ul,
ol {
  padding: 0;
}

li {
  list-style: none;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0;
  text-wrap: pretty;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

h1 {
  max-width: 14ch;
  color: var(--color-paper);
  font-size: 6.4rem;
  line-height: 0.98;
  text-align: center;
}

h2 {
  max-width: 28ch;
  font-size: var(--text-3xl);
  line-height: var(--leading-title);
}

h3 {
  font-size: var(--text-xl);
  line-height: 1.28;
}

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 100;
  transform: translateY(-200%);
  opacity: 0;
  pointer-events: none;
  padding: 1rem 1.4rem;
  border-radius: var(--radius);
  background: var(--color-dark);
  color: var(--color-paper);
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.diagnostic-app {
  min-height: 100svh;
}

.landing-shell {
  display: grid;
  justify-items: center;
  align-content: center;
  gap: var(--space-3);
  width: min(calc(100% - (var(--gutter) * 2)), 84rem);
  min-height: 100svh;
  margin-inline: auto;
  padding: clamp(4.8rem, 8vw, 8rem) 0;
  text-align: center;
}

#start-screen {
  background: var(--color-dark);
  color: var(--color-dark-text);
}

.landing-facts {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-1);
  border-top: var(--line) solid var(--color-dark-line);
  border-bottom: var(--line) solid var(--color-dark-line);
}

.landing-facts p {
  display: grid;
  gap: 0.2rem;
  min-width: 12.8rem;
  padding: 1rem 2rem;
}

.landing-facts p + p {
  border-left: var(--line) solid var(--color-dark-line);
}

.landing-facts strong {
  color: var(--color-paper);
  font-size: var(--text-xl);
  line-height: 1.2;
}

.landing-facts span {
  color: var(--color-dark-muted);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.45;
}

#start-screen .btn {
  margin-top: var(--space-3);
}

.brand-credit {
  color: var(--color-dark-muted);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-credit span {
  display: inline-block;
  margin-left: 0.6rem;
  color: var(--color-gold-light);
  font-weight: 700;
  letter-spacing: 0;
}

.landing-visual {
  display: grid;
  place-items: center;
  min-width: 0;
  margin-top: var(--space-2);
}

.landing-visual img {
  display: block;
  width: min(48vw, 34rem);
  height: auto;
  filter: drop-shadow(0 20px 44px rgba(0, 0, 0, 0.22));
}

.section-copyblock {
  display: grid;
  max-width: 76rem;
  gap: var(--space-3);
}

.intro,
.section-copyblock p:not(.eyebrow),
.diagnostic-card p,
.result-copy,
.result-note {
  max-width: 68rem;
  color: var(--color-ink-soft);
  font-size: var(--text-lg);
  line-height: var(--leading-loose);
  word-break: keep-all;
  overflow-wrap: anywhere;
}

#start-screen .intro {
  margin-inline: auto;
}

#start-screen .intro,
#start-screen .section-copyblock p:not(.eyebrow) {
  color: var(--color-dark-text);
}

.eyebrow,
.score-label,
.result-kicker,
.axis-card span,
.step-index {
  color: var(--color-gold);
  font-size: var(--text-sm);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.button-row,
.quiz-actions,
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 4.8rem;
  padding: 0 1.8rem;
  border: var(--line) solid transparent;
  border-radius: 999rem;
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.2;
  transition: transform 0.18s ease, color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: var(--color-dark);
  border-color: var(--color-dark);
  color: var(--color-paper);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-dark-2);
  border-color: var(--color-dark-2);
}

.btn-secondary {
  border-color: var(--color-line-strong);
  color: var(--color-ink);
}

.debug-result-button {
  position: fixed;
  right: var(--space-3);
  bottom: var(--space-3);
  z-index: 30;
  min-height: 4.4rem;
  border-color: var(--color-gold);
  background: var(--color-gold);
  color: var(--color-dark);
  box-shadow: 0 0.4rem 1.6rem rgba(23, 27, 34, 0.18);
}

.debug-result-button:hover,
.debug-result-button:focus-visible {
  background: var(--color-gold-light);
  border-color: var(--color-gold-light);
}

body[data-active-screen="result"] .debug-result-button {
  display: none;
}

#start-screen .btn-primary,
.result-hero .btn-primary {
  background: var(--color-paper);
  border-color: var(--color-paper);
  color: var(--color-dark);
}

#start-screen .btn-secondary,
.result-hero .btn-secondary {
  border-color: var(--color-dark-line);
  color: var(--color-paper);
}

.diagnostic-section {
  padding: var(--space-8) 0;
  scroll-margin-top: 12rem;
}

.diagnostic-shell {
  width: var(--shell);
  margin-inline: auto;
}

.app-screen {
  display: none;
  scroll-margin-top: 12rem;
}

.app-screen.is-active {
  display: block;
}

.diagnostic-card {
  display: grid;
  gap: var(--space-5);
  padding: var(--space-5);
  border: var(--line) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  box-shadow: var(--shadow);
}

.diagnostic-card--intro {
  grid-template-columns: minmax(0, 0.68fr) minmax(28rem, 0.32fr);
  align-items: start;
}

.quiz-status {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-5);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: var(--color-dark);
}

.quiz-status h2 {
  max-width: 34ch;
  color: var(--color-paper);
  font-size: var(--text-3xl);
}

.progress-meter {
  width: 100%;
  height: 0.8rem;
  border-radius: 999rem;
  background: rgba(255, 250, 240, 0.16);
  overflow: hidden;
}

.progress-meter span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--color-gold);
  transition: width 0.2s ease;
}

.answer-list {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
  border-right: var(--line) solid var(--color-line);
  border-bottom: var(--line) solid var(--color-line);
  border-left: var(--line) solid var(--color-line);
  background: var(--color-white);
}

.answer-option {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  width: 100%;
  min-height: 7.2rem;
  padding: var(--space-3);
  border: var(--line) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-paper);
  cursor: pointer;
  text-align: left;
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}

.answer-option:hover,
.answer-option:focus-visible {
  border-color: var(--color-line-strong);
  box-shadow: 0 1px 2px rgba(23, 27, 34, 0.08);
}

.answer-option:active {
  transform: scale(0.99);
}

.answer-option.is-selected {
  border-color: var(--color-gold);
  background: var(--color-success-surface);
}

.answer-option__marker {
  display: grid;
  place-items: center;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-gold-strong);
  font-size: var(--text-sm);
  font-weight: 800;
}

.answer-option__text {
  color: var(--color-ink);
  font-size: var(--text-lg);
  line-height: 1.58;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.field-error {
  padding: var(--space-3) var(--space-4);
  border-right: var(--line) solid var(--color-line);
  border-left: var(--line) solid var(--color-line);
  background: var(--color-error-surface);
  color: var(--color-error);
  font-weight: 700;
}

.quiz-actions {
  justify-content: space-between;
  padding: var(--space-4);
  border-right: var(--line) solid var(--color-line);
  border-bottom: var(--line) solid var(--color-line);
  border-left: var(--line) solid var(--color-line);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  background: var(--color-white);
}

.result-hero {
  display: grid;
  gap: 0;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-dark);
  color: var(--color-dark-text);
}

.result-kicker {
  margin: 0 0 var(--space-2);
}

.result-hero h2 {
  max-width: 30ch;
  color: var(--color-paper);
  font-size: var(--text-4xl);
  line-height: 1.22;
  margin: 0 0 var(--space-3);
}

.result-hero p {
  color: var(--color-dark-text);
}

.result-hero .result-copy {
  max-width: 76rem;
  margin: 0 0 var(--space-4);
}

.result-actions {
  margin-top: var(--space-1);
}

.result-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.58fr) minmax(30rem, 0.42fr);
  gap: var(--space-4);
  align-items: start;
  margin-top: var(--space-4);
}

.result-panel,
.axis-card,
.practice-card,
.cta-card,
.scoreboard {
  border: var(--line) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  box-shadow: 0 1px 2px rgba(23, 27, 34, 0.08);
}

.result-panel,
.scoreboard {
  display: grid;
  align-content: start;
  gap: var(--space-5);
  padding: var(--space-5);
}

.result-block,
.score-section {
  display: grid;
  align-content: start;
  gap: 0;
}

.result-block>.eyebrow,
.score-section>.eyebrow,
.cta-card>.eyebrow {
  margin: 0 0 var(--space-2);
}

.result-block h3 {
  margin: 0 0 var(--space-2);
  font-size: var(--text-2xl);
  line-height: 1.28;
}

.result-block .result-note {
  max-width: none;
  margin: 0;
  font-size: 1.7rem;
  line-height: 1.68;
}

.axis-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-1);
}

.axis-card {
  display: grid;
  gap: 0.6rem;
  min-width: 0;
  padding: var(--space-3);
}

.axis-card strong {
  font-size: var(--text-lg);
  line-height: 1.34;
}

.axis-card p {
  margin-top: 0.2rem;
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  line-height: 1.55;
}

.score-list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-1);
}

.score-row {
  display: grid;
  gap: var(--space-1);
}

.score-row__header {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 800;
}

.score-track {
  height: 0.8rem;
  border-radius: 999rem;
  background: rgba(23, 27, 34, 0.08);
  overflow: hidden;
}

.score-track span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--color-gold);
}

.practice-list {
  display: grid;
  gap: 1.2rem;
  margin-top: var(--space-1);
}

.practice-card,
.cta-card {
  display: grid;
  gap: 0;
  padding: var(--space-4);
}

.practice-card {
  grid-template-columns: 4rem minmax(0, 1fr);
}

.step-index {
  display: grid;
  place-items: center;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: var(--color-paper);
  color: var(--color-gold-strong);
  letter-spacing: 0;
}

.practice-card p,
.cta-card p {
  color: var(--color-ink-soft);
  font-size: var(--text-md);
  line-height: var(--leading-body);
}

.practice-card p {
  align-self: center;
}

.cta-card h3 {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xl);
  line-height: 1.28;
}

.cta-card p {
  margin: 0;
}

.cta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.cta-card .btn {
  justify-self: start;
  margin-top: var(--space-3);
}

@media (max-width: 920px) {
  .result-layout {
    grid-template-columns: 1fr;
  }

  .landing-visual img {
    width: min(42vw, 30rem);
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: auto;
    --gutter: 1.6rem;
  }

  h1 {
    font-size: 4rem;
  }

  h2,
  .quiz-status h2 {
    font-size: var(--text-2xl);
  }

  .axis-grid,
  .cta-grid {
    grid-template-columns: 1fr;
  }

  .landing-shell {
    min-height: 100svh;
    padding: var(--space-5) 0;
    gap: var(--space-4);
  }

  .landing-visual {
    justify-content: center;
  }

  .landing-visual img {
    width: min(58vw, 21rem);
  }

  .landing-facts p {
    min-width: 10.8rem;
    padding-inline: 1.4rem;
  }

  .diagnostic-section {
    padding: var(--space-6) 0;
    scroll-margin-top: 16rem;
  }

  .app-screen {
    scroll-margin-top: 16rem;
  }

  .diagnostic-card,
  .quiz-status,
  .result-hero,
  .result-panel,
  .scoreboard {
    padding: var(--space-4);
  }

  .answer-option {
    grid-template-columns: 3.6rem minmax(0, 1fr);
  }

  .answer-option__marker,
  .step-index {
    width: 3.6rem;
    height: 3.6rem;
  }

  .quiz-actions {
    justify-content: stretch;
  }

  .quiz-actions .btn,
  .result-actions .btn {
    flex: 1 1 18rem;
  }

  .debug-result-button {
    right: var(--space-2);
    bottom: var(--space-2);
  }

  .result-hero h2 {
    font-size: 2.8rem;
    line-height: 1.24;
  }

  .result-block h3 {
    font-size: 2.1rem;
    line-height: 1.3;
  }
}